The idea for this software was conceived during a Sustainable Rivers Program workshop for the Savannah River, where nearly 50 scientists worked together to formulate a set of flow recommendations designed to sustain the integrity of Savannah River ecosystems. The Sustainable Rivers Program partners the U.S. Army Corps of Engineers (Corps) and The Nature Conservancy in an ongoing effort to re-operate Corps water resources infrastructure to achieve more ecologically sustainable flows, while maintaining or enhancing project benefits. During the two-day workshop, sets of flow recommendations were created for three ecotypes of particular importance in the Savannah Basin (shoals, floodplain forest, and estuary). Each set was comprised of specified pulse, flood, and low flows for wet, average, or dry hydrologic conditions. After recommendations were prepared for the individual ecotypes, those three sets were unified into a single set of recommendations through the merging of features specified for each of the ecotypes.